Articles: coronavirus.
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Comparative Study
Covid-19 Vaccine Protection among Children and Adolescents in Qatar.
The BNT162b2 vaccine against coronavirus disease 2019 (Covid-19) has been authorized for use in children 5 to 11 years of age and adolescents 12 to 17 years of age but in different antigen doses. ⋯ Vaccination in children was associated with modest, rapidly waning protection against omicron infection. Vaccination in adolescents was associated with stronger, more durable protection, perhaps because of the larger antigen dose. (Funded by Weill Cornell Medicine-Qatar and others.).
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Information regarding the protection conferred by vaccination and previous infection against infection with the B.1.1.529 (omicron) variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is limited. ⋯ Our findings in two high-risk populations suggest that mRNA vaccination and previous infection were effective against omicron infection, with lower estimates among those infected before the period of delta predominance. Three vaccine doses offered significantly more protection than two doses, including among previously infected persons.
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Early treatment of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections can prevent hospitalisation and death in patients with coronavirus disease 2019 (COVID-19) who have one or more risk factors for serious COVID-19 progression. While early treatment presents a range of logistical challenges, clinicians are nevertheless aided by a growing number of approved medications for early treatment of COVID-19. Medications include drugs that inhibit SARS-CoV-2 viral replication, anti-SARS-CoV-2 monoclonal antibody formulations that provide passive immunisation, and immunomodulatory drugs that suppress the body's inflammatory response. ⋯ As new drugs and new data on use of existing approved drugs become available, clinicians face a growing challenge in determining the optimal treatments from the array of options. As it stands, early treatment of COVID-19 needs to be individualised depending on age, pregnancy status, existing medications, and renal and liver disease status. Future treatments in development might have roles in patients with lower risk profiles and in reducing transmission as we learn to live with SARS-CoV-2.
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Randomized Controlled Trial Comparative Study
Evaluation of mRNA-1273 Vaccine in Children 6 Months to 5 Years of Age.
The safety, reactogenicity, immunogenicity, and efficacy of the mRNA-1273 coronavirus disease 2019 (Covid-19) vaccine in young children are unknown. ⋯ Two 25-μg doses of the mRNA-1273 vaccine were found to be safe in children 6 months to 5 years of age and elicited immune responses that were noninferior to those in young adults. (Funded by the Biomedical Advanced Research and Development Authority and National Institute of Allergy and Infectious Diseases; KidCOVE ClinicalTrials.gov number, NCT04796896.).
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Internal medicine journal · Nov 2022
The short-term outcomes of patients with chronic liver disease hospitalized with COVID-19.
Patients with chronic liver disease (CLD) might have an aggravated course after acquisition of coronavirus disease 2019 (COVID-19). ⋯ Cirrhosis is independently associated with higher 30-day mortality of hospitalised patients with COVID-19.